KR101303749B1 - Quick-release valve and vacuum pump device with the same - Google Patents

Abstract

PURPOSE: A quick release valve and a vacuum pump system including the same are provided to improve the energy efficiency and the destruction speed as a destruction flow path is formed while a vacuum flow path is completely blocked by the operation of a slide valve. CONSTITUTION: A quick release valve and a vacuum pump system including the same comprise a body (11), a slide valve (12), a vacuum flow path, and a destruction flow path. The body has an inner installation space (15) including a front discharge unit (15a) and a path formed in one side of the installation space and communicating with the installation space through a hole (26). The slide valve includes a rear flange unit (19) in which the outer surface is in contact with an inner wall of the installation space and a rear closed cylinder unit (17) extended to face the front discharge unit from the flange unit. The slide valve opens/closes the vacuum flow path by pneumatic pressure. The vacuum flow path passes through the installation space and the front discharge unit from an inlet (20) formed in one side of the body. The destruction flow path is sequentially connected to an air supply hole (21) formed to the other side of the body, the installation space, and the rear surface of the flange unit and includes a first flow path providing the slide pneumatic pressure to the valve and a second flow path passing through the path, the hole, the installation space, and the inlet when the vacuum flow path is closed by the slide.

Description

Quick-release valve and vacuum pump device with the same}

The present invention relates to a release valve and a vacuum pump apparatus having the valve that can be usefully applied to a vacuum transfer system using high-speed compressed air.

Common vacuum transfer systems include a vacuum pump, adsorption pads and compressed air supply. Here, the pad is connected to the suction port of the vacuum pump, whereby the vacuum pump and the inner space of the pad are in communication with each other. In this system, the high-speed compressed air passes through the vacuum pump and is discharged to the outside, where the internal air of the pad is attracted into the vacuum pump through the suction port and is discharged together with the compressed air.

Through the evacuation process, a vacuum and a negative pressure are generated in the inner space of the pad in contact with the surface of the article, and the conveyance is possible by holding the article by the generated negative pressure. The transfer will be performed repeatedly by a separate robotic device constituting the system.

Once the transfer of the article is completed in this manner, it is necessary to quickly destroy the vacuum formed in the inner space of the pad for the repetitive efficiency of the work. Therefore, in many vacuum systems using a vacuum pump, a means for discarding the vacuum generated in the pad is provided. for example:

Patent No. 454082, Patent Publication No. 2004-11571, etc. include a vacuum pump device having a digging line formed on its own body;

Patent Nos. 730323, 865932, and 1157542 include a vacuum system including a vacuum pump and a separate casing structure, and a vacuum system having a break line formed therein;

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The compressed air supplied to the discarding line is simultaneously delivered to the vacuum pump and the pad in the case of the electronic device, and is transferred to the pad through the vacuum pump in the latter system. It is destroyed so that the pad and the article can be separated. All of the above patented technologies are advantageous in that they suggest a method of forcibly destroying a vacuum, while there are structural problems as follows.

First, the compressed air supplied for the destruction of the vacuum does not necessarily need to be delivered to the vacuum pump. Rather, it is preferable to selectively or preferentially deliver the compressed air to the pad in terms of energy efficiency, speed of vacuum destruction, and the like. However, the devices of the patent are all configured so that the compressed air is delivered to the pad simultaneously with or via the vacuum pump.

Secondly, as will be the case in other technical fields, it would be desirable from the economical point of view of the structure that each element constituting a vacuum system can be freely or universally applied in other systems of the same kind. However, in the case of the above patented devices, each element is configured to be used only in the specification, use, and combination defined for the implementation of the patent.

As another example, US Pat. No. 6,155,796 discloses a vacuum pump apparatus for breaking a vacuum using a control valve. Here, the compressed air supplied for the destruction of the vacuum is configured to be delivered to the pad without going through a possible vacuum pump. But this device:

Using at least three control valves for the delivery of said compressed air;

Even when digging, the vacuum flow path including the vacuum chamber is left open as it is;

Thus, distributedly supplied to an open vacuum chamber around the vacuum pump just before the compressed air is delivered to the pad;

Etc., they do not have a merit of being structurally and efficiently.

The present invention is proposed to solve the above problems of the prior arts.

SUMMARY OF THE INVENTION [0006]

It is intended to provide a quick-release valve that can be used for all vacuum systems, while improving the energy efficiency and the speed of destruction by allowing only compressed air to be delivered to the vacuum.

Another object of the present invention is to provide

By including the quick-release valve, it is to provide a vacuum pump device that can be easily designed and implemented at the same time to realize the rapid destruction of the vacuum.

The quick-release valve of the present invention is:

A body having an interior mounting space including a front outlet and a passage formed at one side of the mounting space and communicating with the mounting space through a hole;

A slide valve having a rear flange portion whose outer circumferential surface is in contact with an inner wall of the mounting space, and a rear closed cylinder portion extending from the flange portion toward the front discharge port, the slide valve being operable to open and close the vacuum flow path by air pressure;

A vacuum passage passing through a mounting space and an outlet from a suction port formed at one side of the body;

A first flow passage starting from an air supply port formed at the other side of the body and connected to the rear surface of the flange portion through the mounting space to provide a slide air pressure to the valve, and a passage when the vacuum flow passage is closed by the slide; A discarding passage including a second passage through the hole, the mounting space, and the suction port;

.

The valve may be configured so that the flange portion and the cylinder portion move forward together, so that the outlet port is blocked by the cylinder portion as the outer diameter portion of the cylinder portion comes into close contact with the inner jaw of the mounting space, thereby closing the vacuum flow path. .

Preferably, the cylinder portion is configured such that an end exhaust port extends from the flange portion toward the front outlet side and communicates with the outer mounting space through the side wall through hole; At this time, the vacuum flow path via the mounting space, the through hole, the discharge port from the suction port formed on one side of the body; The valve is operated to open and close the through hole of the cylinder portion, and opens and closes the vacuum flow path.

By design, the valve is:

The flange portion and the cylinder portion move forward together so that the through hole is blocked by the outlet side inner surface and closed;

A coaxially arranged flange portion is moved forward so that the through hole of the cylinder portion fixed to the outlet port is blocked by the inner surface of the flange portion;

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Preferably, the valve is:

A spring disposed coaxially with the outer side of the cylinder portion and having both ends contacting the front inner jaw of the mounting space and the flange portion, respectively;

When the air pressure applied to the rear surface of the flange portion is removed, the back hole is moved by the spring elasticity to open the through hole;

.

On the other hand, the vacuum pump device of the present invention:

A quick release valve, a second mounting space formed in front of the body to communicate with a valve exhaust port, and an ejector inserted into and fixed to the second mounting space;

The ejector is an ejector having a second through hole formed in an outlet opening and a side wall opposite to the inserted air inlet;

The vacuum passage extends from the valve outlet via the second mounting space, the second through hole, and the discharge port;

.

In the quick release valve of the present invention, the vacuum flow path is completely blocked by the operation of the slide valve, and at the same time, the discard flow path is formed. Therefore, the compressed air for the destruction of the vacuum can be delivered only to the pad, not connected to the vacuum pump or the surrounding space thereof, and therefore, there is an effect of improving the energy efficiency and the destruction speed. The quick release valve of the present invention, independently, has the advantage that it can be universally applied to any vacuum system or device.

On the other hand, the release valve may be organically coupled with the ejector part to constitute the vacuum pump apparatus of the present invention, in which compressed air for the destruction of vacuum is not connected to the ejector or its surrounding space and is only transmitted to the pad. And, therefore, there is an effect that can improve the energy efficiency and the destruction speed. Architecturally, the device has the effect of being simple to design and implement.

1 is a cross-sectional view of a quick release valve according to an embodiment of the present invention.
2 is a view for explaining the vacuum generating operation of the valve of FIG.
Figure 3 is a view for explaining the vacuum breaking action of the valve of Figure 1;
4 is a cross-sectional view of a quick release valve according to another embodiment of the present invention.
5 is a perspective view of a vacuum pump device according to a preferred embodiment of the present invention.
6 is a cross-sectional view taken along the line 'A-A' of FIG.
FIG. 7 is a cross-sectional view taken along the line 'B-B' of FIG. 5.

The features and effects of the present invention quick release valve (hereinafter referred to as 'release valve') and vacuum pump device (hereinafter referred to as 'apparatus') described above or not described above are more apparent through the following description of the embodiments described with reference to the accompanying drawings. Will be. In the drawings, the release valves according to the embodiments of the present invention are denoted by the numerals '10' and '30', and the device is denoted by the numeral '40'. In each embodiment, the same reference numerals will be used for functionally identical parts.

1 to 3, the release valve 10 of the present invention includes a body 11 having an internal mounting space 15, a slide valve 12 installed in the mounting space 15, and the body. And a vacuum flow passage 13 and a waste flow passage 14 formed by using an organic configuration and operation between the 11 and the valve 12. Here, the vacuum flow path and the discard flow path 14 refer to flow paths for generating and discarding a vacuum for the exhaust space, respectively.

The body 11 includes a front outlet 15a and an inner mounting space 15 having a closed rear portion, and is formed parallel to one side of the mounting space 15 and through the hole 26 of the partition wall. The passage 16 communicates with the mounting space 15. In addition, the suction port 20 is formed on one side of the outer wall of the body 11 and the compressed air supply port 21 is formed on the other side, the suction port 20 and the supply port 21 are respectively formed in the body (11) It is connected to the mounting space (15).

In the present embodiment, the rear part of the mounting space 15 is provided separately and closed by the finishing material 25 fastened to the body 11, but the rear part design may be variously changed as necessary.

The valve 12 has a rear flange portion 19 whose outer circumferential surface is in contact with the inner wall of the mounting space 15, and rear closed cylinder portions 17, 34 extending from the flange portion 19 toward the front outlet port 15a. And a slide motion in the forward and backward directions by the air pressure provided on the rear surface of the flange portion 19, and the vacuum flow path 13 is opened and closed in accordance with this motion.

Although not shown here, the valve 12 has the flange portion 19 and the cylinder portion 17 move forward, so that the outer diameter portion of the cylinder portion 17 of the inner jaw 22 of the mounting space 15 In close contact with, the outlet 15a may be blocked by the cylinder portion 17 so that the vacuum flow passage 13 may be closed. In this case, however, some problems may occur in the mounting stability of the valve 12.

Preferably, the valve 12 has a rear flange portion 19 having an outer circumferential surface in contact with an inner wall of the mounting space 15, and an end exhaust port 17a extending from the flange portion 19 toward the front outlet 15a. And a rear closed cylinder part 17 communicating with the mounting space 15 on the outside through the side wall through hole 18. In the present invention, the valve 12 slides forward and backward by the air pressure provided on the rear surface of the flange portion 19, and the through hole 18 is opened and closed according to this movement, and thus the vacuum flow path 13 It is configured to open and close.

In this embodiment, the slide structure of the valve 12, the flange portion 19 and the cylinder portion 17 is integrally formed and moves forward together, the through hole 18 is blocked on the inner surface of the outlet port (15a) side It is a structure that is closed. However, in another embodiment, as in the valve 32 shown in Figure 4, the coaxially arranged cross-section 'c'-shaped flange portion 33 is moved forward, the cylinder portion fixed to the outlet (15a) side The through hole 18 of 34 may be blocked by the inner surface of the flange portion 33 and closed.

In either case, the release valves 12, 32 are preferably:

A spring (23) disposed coaxially on the outside of the cylinder portion (17, 34) and having both ends in contact with the front inner jaw (22) and the flange portions (19,33) of the mounting space (15), respectively;

When the air pressure applied to the rear surfaces of the flange portions 19 and 33 is removed, the spring 23 is moved backward by the elasticity so that the through hole 18 is opened;

.

Therefore, unless the release valves 10 and 30 of the present invention operate to break vacuum, the through holes 18 of the cylinder portions 17 and 33 are not closed.

2, in constructing a vacuum system, the release valve 10 of the present invention is provided with a vacuum pump (V) and the suction pad (P) separately. That is, the system configuration, the vacuum pump (V) is connected to the open outlet (15a) of the body 11 mounting space 15, the pad (P) is connected to the inlet (20). As a matter of course, the vacuum pump (V) also has a suction port, the communication between the outlet port 15a of the body 11 and the suction port of the vacuum pump (V) is formed.

In this state, when the high-speed compressed air is discharged to the outside through the vacuum pump (V), the vacuum flow path 13 serves to discharge the air. That is, the vacuum flow passage 13 is connected to the external vacuum pump V in order from the inlet 20 through the mounting space 15-through-hole 18-exhaust port 17a or discharge port 15a. The internal air of (P) is drawn to the vacuum pump (V) along the vacuum flow path 13 and discharged together with the compressed air.

As the internal air of the pad P is discharged as described above, a vacuum and a negative pressure are generated in the internal space of the pad P, and the object in contact with the pad P may be gripped by the negative pressure. Once gripping and conveying of the article is completed, it is necessary to quickly destroy the vacuum formed in the inner space of the pad for repetitive efficiency of the work.

Referring to FIG. 3, when compressed air is supplied to the supply port 21, the waste flow passage 14 serves to destroy the vacuum and negative pressure generated above. The discarding flow passage 14 includes two flow paths starting and branching from the supply port 21. The first flow passage 14a is connected to the rear surface of the flange portion 19 via the mounting space 15. A passage for providing a slide air pressure to the valve 12, the second passage 14b is a passage 16-mounting space 15 (outside of the cylinder portion)-suction port when the through hole 18 is closed by the slide It is a flow path connected to the pad P via the 20 in order.

In the drawing, reference numeral 24 is movably mounted to the body 11, and an end thereof extends or contracts the second flow passage 14b by interfering with the passage 16 or the partition hole 26, so that the second flow passage 14b It is a control to adjust the amount of air passing through the).

Specifically, when the compressed air is provided to the supply port 21, the pressure of the air through the first flow passage 14a pushes the valve 12 forward and slides the cylinder, thus, the cylinder portion of the valve 12 By closing the through hole 18 of 17, the vacuum flow passage 13 through the vacuum pump V is completely blocked, and the second flow passage 14b is established. Then, all of the compressed air is directly supplied to the space inside the pad P, and the object is separated from the pad P while the vacuum and the negative pressure in the pad P are destroyed.

When the compressed air supply through the supply port 21 is stopped after the separation, the operation of FIG. 2 for sliding the valve 12 backward by the spring 23 elasticity and again forming the vacuum will be performed.

According to the present invention, the release valve (10,30) independent from the vacuum pump (V) is provided for the vacuum generation / destruction control. On the other hand, the compressed air for vacuum digging does not flow to the vacuum pump side, all are controlled to be directly supplied only to the suction pad (P) side. On the other hand, since the above release valves 10 and 30 exist independently, the application of the vacuum pump, valve, pad, etc. used in the vacuum system is not particularly limited.

However, in the embodiment of the present invention, the release valve 10 is combined with the ejector part to constitute one vacuum pump device 40.

5 to 7, the device 40 of the present invention has a second mounting valve configured to communicate with the above-described release valve 10 and the exhaust port 17a of the valve 12 in front of the body 11. It comprises a space 41, and the ejector 42 is fixed to the second mounting space (41). Here, reference numeral 20 denotes a suction port to which the pad P is connected, similarly to reference numeral 20 of FIG. 1.

The ejector 42 has a cylinder shape in which an inner air inlet 43 inserted into the second mounting space 41, an outlet 44 on the opposite side, and a second through hole 45 of the side wall are formed, and in the series thereof. And a plurality of nozzles assembled. In addition, a so-called check valve may be disposed inside the second through hole 45. However, this ejector 42 structure is not special in the present invention.

6 and 7 simultaneously, the vacuum passage 13 of the release valve 10 passes through the second mounting space 41-the second through-hole 45-the discharge port 44 in order from the exhaust port 17a. It is configured to extend. Thus, when the high-speed compressed air is discharged to the outside through the ejector 42 (see arrow ①-① '), the vacuum flow passage 13 is installed from the suction port 20 to the mounting space 15-through hole 18. -After passing through the exhaust port 17a (see arrows ②-② '), followed by the second mounting space 41-the second through hole 45-via the discharge port 44 in turn (see arrows ③-③') In this case, the internal air of the pad P is attracted into the vacuum ejector 42 along the extended vacuum passage 13 and is discharged together with the compressed air.

In FIG. 7, reference numeral 46 denotes a communication hole connecting the suction port 20 and the mounting space 15.

As the internal air of the pad P is discharged as described above, a vacuum and a negative pressure are generated in the internal space of the pad P, and the object in contact with the pad P may be gripped by the negative pressure.

On the contrary, when the compressed air is supplied to the supply port 21, the waste flow passage 14 serves to destroy the vacuum and negative pressure generated above. The discarding flow passage 14 includes two flow passages 14a and 14b starting and branching from the supply port 21. For the formation and interaction of each branch flow passage 14a and 14b, FIG. As described in detail above, it will be omitted here. Reference numeral 24a denotes a control mechanism that enables to control the amount of air passing through the second flow passage 14b, similarly to reference numeral 24 of the release valves 10 and 30.

Here again, the compressed air for vacuum destruction is controlled not to flow into the part of the ejector 42 or the second space 41 around it, but to be directly supplied only to the suction pad P side. Structurally, the device 40 of the present invention includes a vacuum ejector 42 and a release valve 10 while being simply designed and implemented.

10,30. Quick release valve
11.Body 12,32. valve
13. Vacuum flow 14. Dig flow
14a. Euro 1 14b. The second euros
15. Mounting Space 15a. outlet
16. Pathways 17,34. Cylinder
17a. Air vent 18. Through air
19,33. Flange 20.Suction port
21. Supply port 22. Inner jaw
23. Spring 24, 24a. Regulator
25. Finishes 26. Holes
40. Vacuum pump device
41.Separate mounting space 42.Ejector
43. Inlet 44. Outlet
45. Second hole 46. Communication hole

Claims (8)

Body having an interior mounting space (15) including a front outlet (15a) and a passage (16) formed on one side of the mounting space (15) and communicating with the mounting space (15) through a hole (26) 11);
Rear flange portions 19 and 33 whose outer circumferential surfaces contact the inner wall of the mounting space 15, and rear closed cylinder portions 17 and 34 extending from the flange portions 19 and 33 toward the front outlet port 15a. And slide valves 12 and 32 which operate to open and close the vacuum flow path 13 by air pressure;
A vacuum passage 13 passing through the mounting space 15 and the discharge port 15a from the suction port 20 formed at one side of the body 11;
Starting from the air supply port 21 formed on the other side of the body, the first passage 14a is connected to the rear surface of the flanges 19 and 33 via the mounting space 15 to provide slide air pressure to the valve. And a second flow passage 14b including a passage 16, a hole 26, a mounting space 15, and a second flow passage 14b passing through the suction port 20 when the vacuum flow passage 13 is closed by the slide ( 14);
Quick-release valve comprising a.
The method of claim 1,
The valves 12 and 32 are:
As the flange portions 19 and 33 and the cylinder portions 17 and 34 move forward together, the outer diameter portions of the cylinder portions 17 and 34 come into close contact with the inner jaw 22 of the mounting space 15. The outlet (15a) is blocked by the cylinders (17, 34), so that the vacuum flow path (13) is closed;
Quick-release valve, characterized in that.
The method of claim 1,
The cylinder parts 17 and 34 have end exhaust ports 17a extending from the flange parts 19 and 33 to the front outlet ports 15a and communicating with the outer mounting space 15 through the side wall through holes 18. Is designed to;
At this time, the vacuum passage 13 passes through the mounting space 15, the through hole 18, the outlet 15a from the inlet 20;
The valves 12 and 32 operate to open and close the through holes 18 of the cylinder parts 17 and 34 to open and close the vacuum flow path 13;
Quick-release valve characterized in that.
The method of claim 3,
The valves 12 and 32 are:
The flange portion 19 and the cylinder portion 17 move forward together so that the through hole 18 is blocked by the inner surface of the outlet port 15a and closed;
Coaxially arranged flange portion 33 is moved forward, so that the through-hole 18 of the cylinder portion 34 fixed to the outlet port 15a side is blocked by the inner surface of the flange portion (19, 33) closed ;
Quick-release valve, characterized in that.
The method according to any one of claims 1 to 4,
The valves 12 and 32 are:
A spring (23) disposed coaxially on the outside of the cylinder portion (17, 34) and having both ends in contact with the front inner jaw (22) and the flange portions (19,33) of the mounting space (15), respectively;
When the air pressure applied to the rear surface of the flange portion (19,33) is removed, it is configured to move backward by the spring (23) elasticity to open the through hole (18);
Quick-release valve, characterized in that.
The method according to any one of claims 1 to 4,
The quick release valve is:
Air flowably mounted to the body 11 and air passing through the second flow passage 14b by extending or contracting the second flow passage 14b by interfering with the passage 16 or the partition hole 26. Control knob to adjust the amount of;
Quick-release valve, characterized in that it further comprises.
The quick release valve (10, 30) of any one of claims 1 to 4, and the second mounting space (41) formed in front of the body (11) to communicate with the exhaust port (17a) of the valve (12, 32); And an ejector (42) inserted into and fixed to the second mounting space (41);
The ejector (42) is an ejector (ejector) in which an air inlet (43) opposite to the inserted inner discharge port (44) and a second through hole (45) of sidewalls are formed;
The vacuum passage 13 extends from the discharge port 15a via the second mounting space 41, the second through hole 45, and the discharge port 44;
Vacuum pump device characterized in that.
The method of claim 7, wherein
The valves 12 and 32 are:
A spring (23) disposed coaxially on the outside of the cylinder portion (17, 34) and having both ends in contact with the front inner jaw (22) and the flange portions (19,33) of the mounting space (15), respectively;
When the air pressure applied to the rear surface of the flange portion (19,33) is removed, it is configured to move backward by the spring (23) elasticity to open the through hole (18);
Vacuum pump device characterized in that.

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